CVE-2023-52726Public exploitNetwork attack vector

Stream denial of service via repeated error handling

Published Apr 29, 2024 · Updated Aug 2, 2024

Denial of service in ONOS onos-ric-sdk-go 0.8.12 allows remote attackers to halt an xApp indication stream via a malformed message. The Subscribe function logs a receive error and reads again from the already-aborted gRPC stream, repeatedly processing the same error. A connected RAN node must send a malformed ASN.1 indication; later well-formed messages remain blocked until the xApp or RAN reinitializes the subscription.

CVSS severity6.5
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in ONOS onos-ric-sdk-go 0.8.12 allows remote attackers to halt an xApp indication stream via a malformed message. The Subscribe function logs a receive error and reads again from the already-aborted gRPC stream, repeatedly processing the same error. A connected RAN node must send a malformed ASN.1 indication; later well-formed messages remain blocked until the xApp or RAN reinitializes the subscription.

The record

CVE
CVE-2023-52726
Published
Apr 29, 2024
Updated
Aug 2, 2024
Vendor
ONOS Project
Product
ONOS
Classifications
CWE-835, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.8.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ONOS Project · ONOSversion=0.8.12

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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